United Kingdom, Sept. 29 -- Sadie Frost refuses to be "pigeonholed".

The 61-year-old star has enjoyed success as an actress, a producer and as a fashion designer - but she's recently directed Twiggy, a documentary about the legendary fashion model, and she's loved that challenge, too.

Sadie told People: "To be able to change careers at my age? I never thought this twist would happen."

Sadie admitted to drawing inspiration from Twiggy's successes.

She said: "What is so inspiring about Twiggy to me is that she evolves with time, and I think I've done similar things in my life where I don't want to be or do just one thing.

"And I don't want to be told I can't do something because of my age. I don't want to be pigeonholed. You can do any...